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authorKay Sievers <kay.sievers@vrfy.org>2007-08-12 20:43:55 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:51:06 -0700
commit5c5daf657cb5f963a38413f2852279d7a3843144 (patch)
treeec314c25ca40528bd4625944a93846d1654c9cd9 /lib/kobject_uevent.c
parent07c015e7654821f2dda00dcf152c65b2afd46ac3 (diff)
downloadlinux-5c5daf657cb5f963a38413f2852279d7a3843144.tar.gz
Driver core: exclude kobject_uevent.c for !CONFIG_HOTPLUG
Move uevent specific logic from the core into kobject_uevent.c, which does no longer require to link the unused string array if hotplug is not compiled in. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/kobject_uevent.c')
-rw-r--r--lib/kobject_uevent.c57
1 files changed, 44 insertions, 13 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 5ccda460262..a8efb48dca5 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -23,17 +23,6 @@
#include <net/sock.h>
-/* the strings here must match the enum in include/linux/kobject.h */
-const char *kobject_actions[] = {
- "add",
- "remove",
- "change",
- "move",
- "online",
- "offline",
-};
-
-#if defined(CONFIG_HOTPLUG)
u64 uevent_seqnum;
char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH;
static DEFINE_SPINLOCK(sequence_lock);
@@ -41,6 +30,50 @@ static DEFINE_SPINLOCK(sequence_lock);
static struct sock *uevent_sock;
#endif
+/* the strings here must match the enum in include/linux/kobject.h */
+static const char *kobject_actions[] = {
+ [KOBJ_ADD] = "add",
+ [KOBJ_REMOVE] = "remove",
+ [KOBJ_CHANGE] = "change",
+ [KOBJ_MOVE] = "move",
+ [KOBJ_ONLINE] = "online",
+ [KOBJ_OFFLINE] = "offline",
+};
+
+/**
+ * kobject_action_type - translate action string to numeric type
+ *
+ * @buf: buffer containing the action string, newline is ignored
+ * @len: length of buffer
+ * @type: pointer to the location to store the action type
+ *
+ * Returns 0 if the action string was recognized.
+ */
+int kobject_action_type(const char *buf, size_t count,
+ enum kobject_action *type)
+{
+ enum kobject_action action;
+ int ret = -EINVAL;
+
+ if (count && buf[count-1] == '\n')
+ count--;
+
+ if (!count)
+ goto out;
+
+ for (action = 0; action < ARRAY_SIZE(kobject_actions); action++) {
+ if (strncmp(kobject_actions[action], buf, count) != 0)
+ continue;
+ if (kobject_actions[action][count] != '\0')
+ continue;
+ *type = action;
+ ret = 0;
+ break;
+ }
+out:
+ return ret;
+}
+
/**
* kobject_uevent_env - send an uevent with environmental data
*
@@ -270,5 +303,3 @@ static int __init kobject_uevent_init(void)
postcore_initcall(kobject_uevent_init);
#endif
-
-#endif /* CONFIG_HOTPLUG */